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Motion analysis in adult spinal deformity: A time-driven activity-based costing perspective
Karel Jacobs1, Pieter Severijns2, Thomas Overbergh2
1KU Leuven, Faculty of Medicine, LIGB (Leuven Institute for Health Policy), Kapucijnenvoer 35 blok d - bus 7001 - 3de verdieping, B, Leuven 3000, Belgium; KU Leuven, Faculty of Medicine, Institute for Orthopaedic Research and Training, UZ Leuven, campus Gasthuisberg, Herestraat 49, Leuven 3000, Belgium; Vlerick Business School, Reep 1, B, Gent 9000, Belgium.
Cost analysis of a novel motion analysis (MA) protocol for adult spinal deformity (ASD) shows that a concise clinical MA (CMA) protocol is more efficient and cost-effective than a research-focused MA (RMA) protocol.
Area of Science:
- Orthopedics
- Biomechanical Engineering
- Health Economics
Background:
- A novel motion analysis (MA) protocol was developed for adult spinal deformity (ASD) patients to enhance treatment planning and functional outcomes.
- The study aimed to assess the cost-effectiveness of transitioning from a research-focused MA (RMA) to a concise clinical MA (CMA) protocol.
Purpose of the Study:
- To evaluate the costs associated with a research-focused MA (RMA) protocol.
- To determine if cost insights can support the adoption of a concise clinical MA (CMA) protocol as standard care for ASD patients.
Main Methods:
- Time-driven activity-based costing (TD-ABC) was employed to quantify the costs of the MA protocols.
- An expert panel refined the RMA protocol into a CMA protocol by excluding specific trials based on cost and clinical relevance.
- The costs of both protocols were calculated using resource time usage and per-minute practical capacity costs.
Main Results:
- The average time for the RMA protocol was 179.0 minutes, reduced to 130.9 minutes for the CMA protocol.
- The total cost for the CMA protocol was €220.83, with staff costs (68.1%) and equipment costs (30.2%) as the primary components.
- The expert panel excluded 12 types of motion trials to create the more efficient CMA protocol.
Conclusions:
- Cost insights are crucial for defining clinically relevant motion analysis protocols for standard care integration.
- The study highlights the economic benefits of a streamlined CMA protocol for ASD patients.
- Future protocol enhancements should consider the impact on treatment outcomes to maximize value.

